Input kW required for a hydraulic pump delivering flow Q at pressure Δp.
Formula
$$ P = \frac{Q \cdot \Delta p}{600 \cdot \eta} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Q$ | Flow | L/min | pump rating |
| $Δp$ | Pressure rise | bar | system pressure |
| $η$ | Overall efficiency | - | pump type |
Sources
- ISO 4409 - Hydraulic fluid power.